The principle of this mobile phone case is to use virtual communication technology. Turn 4G mobile phone into 5G mobile phone through eSIM. Users only need to open the eSIM service to experience the 5G network. Moreover, the 5G communication network provided by the mobile phone case will be displayed in the signal bar like the communication network of the mobile phone card in the mobile phone.

Huawei mobile phone profile Huawei mobile phone belongs to Huawei consumer business. As one of Huawei's three core businesses, Huawei's consumer business began at the end of 2003. After more than ten years of development, 65,438+06 R&D centers have been established in China, Russian, German, Sweden, India and the United States. In 20 15, Huawei was selected as the most valuable brand of BrandZ 100, and ranked in the field of science and technology 16. On July 3rd, 2065438, preliminary data released by China market analysis agency International Data Corporation showed that in the second quarter of 20 18, Huawei's shipments surpassed the IPHONE, ranking second in the world. In July 19, 17, China Quality Certification Center official website (3C certification), 8 5G mobile phones obtained 3C certification, including Huawei Mate20X5G and Huawei MateX5G. By 191October 22nd, Huawei had shipped more than 200 million mobile phones. On March 3rd, 2020, Huawei released an annual report showing that in 20 19, Huawei shipped 240 million smartphones (including glory), up about 16.5% year-on-year, making it the second largest mobile phone manufacturer in the world.